Add a way to send the resource percentage signal to the RC.

components/offline_pages/core/background/resource_data_type.h

Index: components/offline_pages/core/background/resource_data_type.h
diff --git a/components/offline_pages/core/background/resource_data_type.h b/components/offline_pages/core/background/resource_data_type.h
new file mode 100644
index 0000000000000000000000000000000000000000..f6b8fefd02180fb3bd36e80075c3723d2d01b46a
--- /dev/null
+++ b/components/offline_pages/core/background/resource_data_type.h
@@ -0,0 +1,34 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This type is used to communicate the type of a network request to the
+// RequestCoordinator.  We don't use content::ResourceType which is used by
+// the network code because code from the content tree is not available to
+// code in the components tree (RequestCoordinator).
+
+#ifndef COMPONENTS_OFFLINE_PAGES_CORE_BACKGROUND_RESOURCE_DATA_TYPE_H_
+#define COMPONENTS_OFFLINE_PAGES_CORE_BACKGROUND_RESOURCE_DATA_TYPE_H_
+
+namespace offline_pages {
+
+enum ResourceDataType {

[Dmitry Titov, 2017/05/18 02:28:10]

It's simpler to move this enum into a proper class as a inner enum class. Enums
don't
usually deserve a separate files. Also, it looks like this enum will always be
used in the context of ResourceTrackingPageLoadMetricsObserver::Client (see
comment in resource_tracker_observer.h)

[Pete Williamson, 2017/05/24 01:01:50]

Since it is referenced in offliner.h, i moved it into offliner.h

This enum is used by offliner.h, the PageLoadMetrics code
(ResourceTrackingPageLoadMetricsObserver) and the OfflinePages code
(BackgroundLoadingOffliner).

+  APPLICATION,
+  MEDIA,
+  EXAMPLE,
+  IMAGE,
+  MESSAGE,
+  MODEL,
+  MULTIPART,
+  TEXT_CSS,
+  TEXT_HTML,
+  TEXT_PLAIN,
+  TEXT_SCRIPT,
+  XHR,
+  OTHER,
+  RESOURCE_DATA_TYPE_COUNT,
+};
+
+}  // namespace offline_pages
+
+#endif  // COMPONENTS_OFFLINE_PAGES_CORE_BACKGROUND_RESOURCE_DATA_TYPE_H_